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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<!-- Generated by HsColour, http://code.haskell.org/~malcolm/hscolour/ -->
<title>Data/Conduit/Text.hs</title>
<link type='text/css' rel='stylesheet' href='hscolour.css' />
</head>
<body>
<pre><a name="line-1"></a><span class='hs-comment'>{-# LANGUAGE DeriveDataTypeable, RankNTypes #-}</span>
<a name="line-2"></a><span class='hs-comment'>-- |</span>
<a name="line-3"></a><span class='hs-comment'>-- Copyright: 2011 Michael Snoyman, 2010-2011 John Millikin</span>
<a name="line-4"></a><span class='hs-comment'>-- License: MIT</span>
<a name="line-5"></a><span class='hs-comment'>--</span>
<a name="line-6"></a><span class='hs-comment'>-- Handle streams of text.</span>
<a name="line-7"></a><span class='hs-comment'>--</span>
<a name="line-8"></a><span class='hs-comment'>-- Parts of this code were taken from enumerator and adapted for conduits.</span>
<a name="line-9"></a><span class='hs-comment'>--</span>
<a name="line-10"></a><span class='hs-comment'>-- For many purposes, it's recommended to use the conduit-combinators library,</span>
<a name="line-11"></a><span class='hs-comment'>-- which provides a more complete set of functions.</span>
<a name="line-12"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Conduit</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span>
<a name="line-13"></a>    <span class='hs-layout'>(</span>
<a name="line-14"></a>
<a name="line-15"></a>    <span class='hs-comment'>-- * Text codecs</span>
<a name="line-16"></a>      <span class='hs-conid'>Codec</span>
<a name="line-17"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>encode</span>
<a name="line-18"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>decode</span>
<a name="line-19"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>utf8</span>
<a name="line-20"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>utf16_le</span>
<a name="line-21"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>utf16_be</span>
<a name="line-22"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>utf32_le</span>
<a name="line-23"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>utf32_be</span>
<a name="line-24"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>ascii</span>
<a name="line-25"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>iso8859_1</span>
<a name="line-26"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>lines</span>
<a name="line-27"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>linesBounded</span>
<a name="line-28"></a>    <span class='hs-layout'>,</span> <span class='hs-conid'>TextException</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-29"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>takeWhile</span>
<a name="line-30"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>dropWhile</span>
<a name="line-31"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>take</span>
<a name="line-32"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>drop</span>
<a name="line-33"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>foldLines</span>
<a name="line-34"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>withLine</span>
<a name="line-35"></a>    <span class='hs-layout'>,</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Conduit</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-varid'>decodeUtf8</span>
<a name="line-36"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>decodeUtf8Lenient</span>
<a name="line-37"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>encodeUtf8</span>
<a name="line-38"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>detectUtf</span>
<a name="line-39"></a>    <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-40"></a>
<a name="line-41"></a><span class='hs-keyword'>import</span>           <span class='hs-conid'>Prelude</span> <span class='hs-varid'>hiding</span> <span class='hs-layout'>(</span><span class='hs-varid'>head</span><span class='hs-layout'>,</span> <span class='hs-varid'>drop</span><span class='hs-layout'>,</span> <span class='hs-varid'>takeWhile</span><span class='hs-layout'>,</span> <span class='hs-varid'>lines</span><span class='hs-layout'>,</span> <span class='hs-varid'>zip</span><span class='hs-layout'>,</span> <span class='hs-varid'>zip3</span><span class='hs-layout'>,</span> <span class='hs-varid'>zipWith</span><span class='hs-layout'>,</span> <span class='hs-varid'>zipWith3</span><span class='hs-layout'>,</span> <span class='hs-varid'>take</span><span class='hs-layout'>,</span> <span class='hs-varid'>dropWhile</span><span class='hs-layout'>)</span>
<a name="line-42"></a>
<a name="line-43"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Exception</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>Exc</span>
<a name="line-44"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>B</span>
<a name="line-45"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-varop'>.</span><span class='hs-conid'>Char8</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>B8</span>
<a name="line-46"></a><span class='hs-keyword'>import</span>           <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Char</span> <span class='hs-layout'>(</span><span class='hs-varid'>ord</span><span class='hs-layout'>)</span>
<a name="line-47"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>T</span>
<a name="line-48"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-conid'>Encoding</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>TE</span>
<a name="line-49"></a><span class='hs-keyword'>import</span>           <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Word</span> <span class='hs-layout'>(</span><span class='hs-conid'>Word8</span><span class='hs-layout'>)</span>
<a name="line-50"></a><span class='hs-keyword'>import</span>           <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Typeable</span> <span class='hs-layout'>(</span><span class='hs-conid'>Typeable</span><span class='hs-layout'>)</span>
<a name="line-51"></a>
<a name="line-52"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Conduit</span>
<a name="line-53"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Conduit</span><span class='hs-varop'>.</span><span class='hs-conid'>List</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>CL</span>
<a name="line-54"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span><span class='hs-varop'>.</span><span class='hs-conid'>Trans</span><span class='hs-varop'>.</span><span class='hs-conid'>Class</span> <span class='hs-layout'>(</span><span class='hs-varid'>lift</span><span class='hs-layout'>)</span>
<a name="line-55"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span><span class='hs-varop'>.</span><span class='hs-conid'>Trans</span><span class='hs-varop'>.</span><span class='hs-conid'>Resource</span> <span class='hs-layout'>(</span><span class='hs-conid'>MonadThrow</span><span class='hs-layout'>,</span> <span class='hs-varid'>monadThrow</span><span class='hs-layout'>)</span>
<a name="line-56"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span> <span class='hs-layout'>(</span><span class='hs-varid'>unless</span><span class='hs-layout'>)</span>
<a name="line-57"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Streaming</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span>
<a name="line-58"></a>
<a name="line-59"></a><a name="Codec"></a><span class='hs-comment'>-- | A specific character encoding.</span>
<a name="line-60"></a><a name="Codec"></a><span class='hs-comment'>--</span>
<a name="line-61"></a><a name="Codec"></a><span class='hs-comment'>-- Since 0.3.0</span>
<a name="line-62"></a><a name="Codec"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Codec</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Codec</span>
<a name="line-63"></a>    <span class='hs-layout'>{</span> <span class='hs-sel'>_codecName</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span>
<a name="line-64"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>codecEncode</span>
<a name="line-65"></a>        <span class='hs-keyglyph'>::</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span>
<a name="line-66"></a>        <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-layout'>,</span> <span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>TextException</span><span class='hs-layout'>,</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-67"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>codecDecode</span>
<a name="line-68"></a>        <span class='hs-keyglyph'>::</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span>
<a name="line-69"></a>        <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-layout'>,</span> <span class='hs-conid'>Either</span>
<a name="line-70"></a>            <span class='hs-layout'>(</span><span class='hs-conid'>TextException</span><span class='hs-layout'>,</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-layout'>)</span>
<a name="line-71"></a>            <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-layout'>)</span>
<a name="line-72"></a>    <span class='hs-layout'>}</span>
<a name="line-73"></a>    <span class='hs-keyglyph'>|</span> <span class='hs-conid'>NewCodec</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-layout'>(</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DecodeResult</span><span class='hs-layout'>)</span>
<a name="line-74"></a>
<a name="line-75"></a><a name="instance%20Show%20Codec"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Show</span> <span class='hs-conid'>Codec</span> <span class='hs-keyword'>where</span>
<a name="line-76"></a>    <span class='hs-varid'>showsPrec</span> <span class='hs-varid'>d</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=</span>
<a name="line-77"></a>        <span class='hs-keyword'>let</span> <span class='hs-layout'>(</span><span class='hs-varid'>cnst</span><span class='hs-layout'>,</span> <span class='hs-varid'>name</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>c</span> <span class='hs-keyword'>of</span>
<a name="line-78"></a>                <span class='hs-conid'>Codec</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span>    <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-str'>"Codec "</span><span class='hs-layout'>,</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-79"></a>                <span class='hs-conid'>NewCodec</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-str'>"NewCodec "</span><span class='hs-layout'>,</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-80"></a>        <span class='hs-keyword'>in</span> <span class='hs-varid'>showParen</span> <span class='hs-layout'>(</span><span class='hs-varid'>d</span> <span class='hs-varop'>&gt;</span> <span class='hs-num'>10</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>showString</span> <span class='hs-varid'>cnst</span> <span class='hs-varop'>.</span> <span class='hs-varid'>shows</span> <span class='hs-varid'>name</span>
<a name="line-81"></a>
<a name="line-82"></a>
<a name="line-83"></a>
<a name="line-84"></a><a name="lines"></a><span class='hs-comment'>-- | Emit each line separately</span>
<a name="line-85"></a><span class='hs-comment'>--</span>
<a name="line-86"></a><span class='hs-comment'>-- Since 0.4.1</span>
<a name="line-87"></a><span class='hs-definition'>lines</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Conduit</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span>
<a name="line-88"></a><span class='hs-definition'>lines</span> <span class='hs-keyglyph'>=</span>
<a name="line-89"></a>    <span class='hs-varid'>awaitText</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span>
<a name="line-90"></a>  <span class='hs-keyword'>where</span>
<a name="line-91"></a>    <span class='hs-varid'>awaitText</span> <span class='hs-varid'>buf</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>await</span> <span class='hs-varop'>&gt;&gt;=</span> <span class='hs-varid'>maybe</span> <span class='hs-layout'>(</span><span class='hs-varid'>finish</span> <span class='hs-varid'>buf</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>process</span> <span class='hs-varid'>buf</span><span class='hs-layout'>)</span>
<a name="line-92"></a>
<a name="line-93"></a>    <span class='hs-varid'>finish</span> <span class='hs-varid'>buf</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unless</span> <span class='hs-layout'>(</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>buf</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>yield</span> <span class='hs-varid'>buf</span><span class='hs-layout'>)</span>
<a name="line-94"></a>
<a name="line-95"></a>    <span class='hs-varid'>process</span> <span class='hs-varid'>buf</span> <span class='hs-varid'>text</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>yieldLines</span> <span class='hs-varop'>$</span> <span class='hs-varid'>buf</span> <span class='hs-varop'>`</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>append</span><span class='hs-varop'>`</span> <span class='hs-varid'>text</span>
<a name="line-96"></a>
<a name="line-97"></a>    <span class='hs-varid'>yieldLines</span> <span class='hs-varid'>buf</span> <span class='hs-keyglyph'>=</span>
<a name="line-98"></a>      <span class='hs-keyword'>let</span> <span class='hs-layout'>(</span><span class='hs-varid'>line</span><span class='hs-layout'>,</span> <span class='hs-varid'>rest</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>break</span> <span class='hs-layout'>(</span><span class='hs-varop'>==</span> <span class='hs-chr'>'\n'</span><span class='hs-layout'>)</span> <span class='hs-varid'>buf</span>
<a name="line-99"></a>      <span class='hs-keyword'>in</span>  <span class='hs-keyword'>case</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>uncons</span> <span class='hs-varid'>rest</span> <span class='hs-keyword'>of</span>
<a name="line-100"></a>            <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span> <span class='hs-varid'>rest'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>yield</span> <span class='hs-varid'>line</span> <span class='hs-varop'>&gt;&gt;</span> <span class='hs-varid'>yieldLines</span> <span class='hs-varid'>rest'</span>
<a name="line-101"></a>            <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>awaitText</span> <span class='hs-varid'>line</span>
<a name="line-102"></a>
<a name="line-103"></a>
<a name="line-104"></a>
<a name="line-105"></a><a name="linesBounded"></a><span class='hs-comment'>-- | Variant of the lines function with an integer parameter.</span>
<a name="line-106"></a><span class='hs-comment'>-- The text length of any emitted line</span>
<a name="line-107"></a><span class='hs-comment'>-- never exceeds the value of the parameter. Whenever</span>
<a name="line-108"></a><span class='hs-comment'>-- this is about to happen a LengthExceeded exception</span>
<a name="line-109"></a><span class='hs-comment'>-- is thrown. This function should be used instead</span>
<a name="line-110"></a><span class='hs-comment'>-- of the lines function whenever we are dealing with</span>
<a name="line-111"></a><span class='hs-comment'>-- user input (e.g. a file upload) because we can't be sure that</span>
<a name="line-112"></a><span class='hs-comment'>-- user input won't have extraordinarily large lines which would</span>
<a name="line-113"></a><span class='hs-comment'>-- require large amounts of memory if consumed.</span>
<a name="line-114"></a><span class='hs-definition'>linesBounded</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MonadThrow</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Conduit</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span>
<a name="line-115"></a><span class='hs-definition'>linesBounded</span> <span class='hs-varid'>maxLineLen</span> <span class='hs-keyglyph'>=</span>
<a name="line-116"></a>    <span class='hs-varid'>awaitText</span> <span class='hs-num'>0</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span>
<a name="line-117"></a>  <span class='hs-keyword'>where</span>
<a name="line-118"></a>    <span class='hs-varid'>awaitText</span> <span class='hs-varid'>len</span> <span class='hs-varid'>buf</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>await</span> <span class='hs-varop'>&gt;&gt;=</span> <span class='hs-varid'>maybe</span> <span class='hs-layout'>(</span><span class='hs-varid'>finish</span> <span class='hs-varid'>buf</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>process</span> <span class='hs-varid'>len</span> <span class='hs-varid'>buf</span><span class='hs-layout'>)</span>
<a name="line-119"></a>
<a name="line-120"></a>    <span class='hs-varid'>finish</span> <span class='hs-varid'>buf</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unless</span> <span class='hs-layout'>(</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>buf</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>yield</span> <span class='hs-varid'>buf</span><span class='hs-layout'>)</span>
<a name="line-121"></a>
<a name="line-122"></a>    <span class='hs-varid'>process</span> <span class='hs-varid'>len</span> <span class='hs-varid'>buf</span> <span class='hs-varid'>text</span> <span class='hs-keyglyph'>=</span>
<a name="line-123"></a>      <span class='hs-keyword'>let</span> <span class='hs-layout'>(</span><span class='hs-varid'>line</span><span class='hs-layout'>,</span> <span class='hs-varid'>rest</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>break</span> <span class='hs-layout'>(</span><span class='hs-varop'>==</span> <span class='hs-chr'>'\n'</span><span class='hs-layout'>)</span> <span class='hs-varid'>text</span>
<a name="line-124"></a>          <span class='hs-varid'>len'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>len</span> <span class='hs-varop'>+</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>length</span> <span class='hs-varid'>line</span>
<a name="line-125"></a>      <span class='hs-keyword'>in</span>  <span class='hs-keyword'>if</span> <span class='hs-varid'>len'</span> <span class='hs-varop'>&gt;</span> <span class='hs-varid'>maxLineLen</span>
<a name="line-126"></a>            <span class='hs-keyword'>then</span> <span class='hs-varid'>lift</span> <span class='hs-varop'>$</span> <span class='hs-varid'>monadThrow</span> <span class='hs-layout'>(</span><span class='hs-conid'>LengthExceeded</span> <span class='hs-varid'>maxLineLen</span><span class='hs-layout'>)</span>
<a name="line-127"></a>            <span class='hs-keyword'>else</span> <span class='hs-keyword'>case</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>uncons</span> <span class='hs-varid'>rest</span> <span class='hs-keyword'>of</span>
<a name="line-128"></a>                   <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span> <span class='hs-varid'>rest'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-129"></a>                     <span class='hs-varid'>yield</span> <span class='hs-layout'>(</span><span class='hs-varid'>buf</span> <span class='hs-varop'>`</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>append</span><span class='hs-varop'>`</span> <span class='hs-varid'>line</span><span class='hs-layout'>)</span> <span class='hs-varop'>&gt;&gt;</span> <span class='hs-varid'>process</span> <span class='hs-num'>0</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span> <span class='hs-varid'>rest'</span>
<a name="line-130"></a>                   <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-131"></a>                     <span class='hs-varid'>awaitText</span> <span class='hs-varid'>len'</span> <span class='hs-varop'>$</span> <span class='hs-varid'>buf</span> <span class='hs-varop'>`</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>append</span><span class='hs-varop'>`</span> <span class='hs-varid'>text</span>
<a name="line-132"></a>
<a name="line-133"></a>
<a name="line-134"></a>
<a name="line-135"></a><a name="encode"></a><span class='hs-comment'>-- | Convert text into bytes, using the provided codec. If the codec is</span>
<a name="line-136"></a><span class='hs-comment'>-- not capable of representing an input character, an exception will be thrown.</span>
<a name="line-137"></a><span class='hs-comment'>--</span>
<a name="line-138"></a><span class='hs-comment'>-- Since 0.3.0</span>
<a name="line-139"></a><span class='hs-definition'>encode</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MonadThrow</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Codec</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Conduit</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span>
<a name="line-140"></a><span class='hs-definition'>encode</span> <span class='hs-layout'>(</span><span class='hs-conid'>NewCodec</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>enc</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>CL</span><span class='hs-varop'>.</span><span class='hs-varid'>map</span> <span class='hs-varid'>enc</span>
<a name="line-141"></a><span class='hs-definition'>encode</span> <span class='hs-varid'>codec</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>CL</span><span class='hs-varop'>.</span><span class='hs-varid'>mapM</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>t</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-142"></a>    <span class='hs-keyword'>let</span> <span class='hs-layout'>(</span><span class='hs-varid'>bs</span><span class='hs-layout'>,</span> <span class='hs-varid'>mexc</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>codecEncode</span> <span class='hs-varid'>codec</span> <span class='hs-varid'>t</span>
<a name="line-143"></a>    <span class='hs-varid'>maybe</span> <span class='hs-layout'>(</span><span class='hs-varid'>return</span> <span class='hs-varid'>bs</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>monadThrow</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fst</span><span class='hs-layout'>)</span> <span class='hs-varid'>mexc</span>
<a name="line-144"></a>
<a name="line-145"></a><a name="decodeNew"></a><span class='hs-definition'>decodeNew</span>
<a name="line-146"></a>    <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span>
<a name="line-147"></a>    <span class='hs-keyglyph'>=&gt;</span> <span class='hs-layout'>(</span><span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Conduit</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-varid'>m</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-layout'>)</span>
<a name="line-148"></a>    <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>t</span>
<a name="line-149"></a>    <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Int</span>
<a name="line-150"></a>    <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DecodeResult</span><span class='hs-layout'>)</span>
<a name="line-151"></a>    <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Conduit</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-varid'>m</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span>
<a name="line-152"></a><span class='hs-definition'>decodeNew</span> <span class='hs-varid'>onFailure</span> <span class='hs-sel'>_name</span> <span class='hs-keyglyph'>=</span>
<a name="line-153"></a>    <span class='hs-varid'>loop</span>
<a name="line-154"></a>  <span class='hs-keyword'>where</span>
<a name="line-155"></a>    <span class='hs-varid'>loop</span> <span class='hs-varid'>consumed</span> <span class='hs-varid'>dec</span> <span class='hs-keyglyph'>=</span>
<a name="line-156"></a>        <span class='hs-varid'>await</span> <span class='hs-varop'>&gt;&gt;=</span> <span class='hs-varid'>maybe</span> <span class='hs-varid'>finish</span> <span class='hs-varid'>go</span>
<a name="line-157"></a>      <span class='hs-keyword'>where</span>
<a name="line-158"></a>        <span class='hs-varid'>finish</span> <span class='hs-keyglyph'>=</span>
<a name="line-159"></a>            <span class='hs-keyword'>case</span> <span class='hs-varid'>dec</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span> <span class='hs-keyword'>of</span>
<a name="line-160"></a>                <span class='hs-conid'>DecodeResultSuccess</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-161"></a>                <span class='hs-conid'>DecodeResultFailure</span> <span class='hs-varid'>t</span> <span class='hs-varid'>rest</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>onFailure</span> <span class='hs-varid'>consumed</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span> <span class='hs-varid'>t</span> <span class='hs-varid'>rest</span>
<a name="line-162"></a>        <span class='hs-comment'>{-# INLINE finish #-}</span>
<a name="line-163"></a>
<a name="line-164"></a>        <span class='hs-varid'>go</span> <span class='hs-varid'>bs</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>bs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>loop</span> <span class='hs-varid'>consumed</span> <span class='hs-varid'>dec</span>
<a name="line-165"></a>        <span class='hs-varid'>go</span> <span class='hs-varid'>bs</span> <span class='hs-keyglyph'>=</span>
<a name="line-166"></a>            <span class='hs-keyword'>case</span> <span class='hs-varid'>dec</span> <span class='hs-varid'>bs</span> <span class='hs-keyword'>of</span>
<a name="line-167"></a>                <span class='hs-conid'>DecodeResultSuccess</span> <span class='hs-varid'>t</span> <span class='hs-varid'>dec'</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-168"></a>                    <span class='hs-keyword'>let</span> <span class='hs-varid'>consumed'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>consumed</span> <span class='hs-varop'>+</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>length</span> <span class='hs-varid'>bs</span>
<a name="line-169"></a>                        <span class='hs-varid'>next</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-170"></a>                            <span class='hs-varid'>unless</span> <span class='hs-layout'>(</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>yield</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-171"></a>                            <span class='hs-varid'>loop</span> <span class='hs-varid'>consumed'</span> <span class='hs-varid'>dec'</span>
<a name="line-172"></a>                     <span class='hs-keyword'>in</span> <span class='hs-varid'>consumed'</span> <span class='hs-varop'>`seq`</span> <span class='hs-varid'>next</span>
<a name="line-173"></a>                <span class='hs-conid'>DecodeResultFailure</span> <span class='hs-varid'>t</span> <span class='hs-varid'>rest</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>onFailure</span> <span class='hs-varid'>consumed</span> <span class='hs-varid'>bs</span> <span class='hs-varid'>t</span> <span class='hs-varid'>rest</span>
<a name="line-174"></a>
<a name="line-175"></a><a name="decodeUtf8Lenient"></a><span class='hs-comment'>-- | Decode a stream of UTF8 data, and replace invalid bytes with the Unicode</span>
<a name="line-176"></a><span class='hs-comment'>-- replacement character.</span>
<a name="line-177"></a><span class='hs-comment'>--</span>
<a name="line-178"></a><span class='hs-comment'>-- Since 1.1.1</span>
<a name="line-179"></a><span class='hs-definition'>decodeUtf8Lenient</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Conduit</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-varid'>m</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span>
<a name="line-180"></a><span class='hs-definition'>decodeUtf8Lenient</span> <span class='hs-keyglyph'>=</span>
<a name="line-181"></a>    <span class='hs-varid'>decodeNew</span> <span class='hs-varid'>onFailure</span> <span class='hs-str'>"UTF8-lenient"</span> <span class='hs-num'>0</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Streaming</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-varid'>decodeUtf8</span>
<a name="line-182"></a>  <span class='hs-keyword'>where</span>
<a name="line-183"></a>    <span class='hs-varid'>onFailure</span> <span class='hs-sel'>_consumed</span> <span class='hs-sel'>_bs</span> <span class='hs-varid'>t</span> <span class='hs-varid'>rest</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-184"></a>        <span class='hs-varid'>unless</span> <span class='hs-layout'>(</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>yield</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-185"></a>        <span class='hs-keyword'>case</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>uncons</span> <span class='hs-varid'>rest</span> <span class='hs-keyword'>of</span>
<a name="line-186"></a>            <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-187"></a>            <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span> <span class='hs-varid'>rest'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-188"></a>                <span class='hs-varid'>unless</span> <span class='hs-layout'>(</span><span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>rest'</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>leftover</span> <span class='hs-varid'>rest'</span><span class='hs-layout'>)</span>
<a name="line-189"></a>                <span class='hs-varid'>yield</span> <span class='hs-varop'>$</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-chr'>'\xFFFD'</span>
<a name="line-190"></a>        <span class='hs-varid'>decodeUtf8Lenient</span>
<a name="line-191"></a>
<a name="line-192"></a><a name="decode"></a><span class='hs-comment'>-- | Convert bytes into text, using the provided codec. If the codec is</span>
<a name="line-193"></a><span class='hs-comment'>-- not capable of decoding an input byte sequence, an exception will be thrown.</span>
<a name="line-194"></a><span class='hs-comment'>--</span>
<a name="line-195"></a><span class='hs-comment'>-- Since 0.3.0</span>
<a name="line-196"></a><span class='hs-definition'>decode</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MonadThrow</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Codec</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Conduit</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-varid'>m</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span>
<a name="line-197"></a><span class='hs-definition'>decode</span> <span class='hs-layout'>(</span><span class='hs-conid'>NewCodec</span> <span class='hs-varid'>name</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>start</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-198"></a>    <span class='hs-varid'>decodeNew</span> <span class='hs-varid'>onFailure</span> <span class='hs-varid'>name</span> <span class='hs-num'>0</span> <span class='hs-varid'>start</span>
<a name="line-199"></a>  <span class='hs-keyword'>where</span>
<a name="line-200"></a>    <span class='hs-varid'>onFailure</span> <span class='hs-varid'>consumed</span> <span class='hs-varid'>bs</span> <span class='hs-varid'>t</span> <span class='hs-varid'>rest</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-201"></a>        <span class='hs-varid'>unless</span> <span class='hs-layout'>(</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>yield</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-202"></a>        <span class='hs-varid'>leftover</span> <span class='hs-varid'>rest</span> <span class='hs-comment'>-- rest will never be null, no need to check</span>
<a name="line-203"></a>        <span class='hs-keyword'>let</span> <span class='hs-varid'>consumed'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>consumed</span> <span class='hs-varop'>+</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>length</span> <span class='hs-varid'>bs</span> <span class='hs-comment'>-</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>length</span> <span class='hs-varid'>rest</span>
<a name="line-204"></a>        <span class='hs-varid'>monadThrow</span> <span class='hs-varop'>$</span> <span class='hs-conid'>NewDecodeException</span> <span class='hs-varid'>name</span> <span class='hs-varid'>consumed'</span> <span class='hs-layout'>(</span><span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>take</span> <span class='hs-num'>4</span> <span class='hs-varid'>rest</span><span class='hs-layout'>)</span>
<a name="line-205"></a>    <span class='hs-comment'>{-# INLINE onFailure #-}</span>
<a name="line-206"></a><span class='hs-definition'>decode</span> <span class='hs-varid'>codec</span> <span class='hs-keyglyph'>=</span>
<a name="line-207"></a>    <span class='hs-varid'>loop</span> <span class='hs-varid'>id</span>
<a name="line-208"></a>  <span class='hs-keyword'>where</span>
<a name="line-209"></a>    <span class='hs-varid'>loop</span> <span class='hs-varid'>front</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>await</span> <span class='hs-varop'>&gt;&gt;=</span> <span class='hs-varid'>maybe</span> <span class='hs-layout'>(</span><span class='hs-varid'>finish</span> <span class='hs-varid'>front</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>go</span> <span class='hs-varid'>front</span><span class='hs-layout'>)</span>
<a name="line-210"></a>
<a name="line-211"></a>    <span class='hs-varid'>finish</span> <span class='hs-varid'>front</span> <span class='hs-keyglyph'>=</span>
<a name="line-212"></a>        <span class='hs-keyword'>case</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>uncons</span> <span class='hs-varop'>$</span> <span class='hs-varid'>front</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span> <span class='hs-keyword'>of</span>
<a name="line-213"></a>            <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-214"></a>            <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>w</span><span class='hs-layout'>,</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>lift</span> <span class='hs-varop'>$</span> <span class='hs-varid'>monadThrow</span> <span class='hs-varop'>$</span> <span class='hs-conid'>DecodeException</span> <span class='hs-varid'>codec</span> <span class='hs-varid'>w</span>
<a name="line-215"></a>
<a name="line-216"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>front</span> <span class='hs-varid'>bs'</span> <span class='hs-keyglyph'>=</span>
<a name="line-217"></a>        <span class='hs-keyword'>case</span> <span class='hs-varid'>extra</span> <span class='hs-keyword'>of</span>
<a name="line-218"></a>            <span class='hs-conid'>Left</span> <span class='hs-layout'>(</span><span class='hs-varid'>exc</span><span class='hs-layout'>,</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>lift</span> <span class='hs-varop'>$</span> <span class='hs-varid'>monadThrow</span> <span class='hs-varid'>exc</span>
<a name="line-219"></a>            <span class='hs-conid'>Right</span> <span class='hs-varid'>bs''</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>yield</span> <span class='hs-varid'>text</span> <span class='hs-varop'>&gt;&gt;</span> <span class='hs-varid'>loop</span> <span class='hs-layout'>(</span><span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>append</span> <span class='hs-varid'>bs''</span><span class='hs-layout'>)</span>
<a name="line-220"></a>      <span class='hs-keyword'>where</span>
<a name="line-221"></a>        <span class='hs-layout'>(</span><span class='hs-varid'>text</span><span class='hs-layout'>,</span> <span class='hs-varid'>extra</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>codecDecode</span> <span class='hs-varid'>codec</span> <span class='hs-varid'>bs</span>
<a name="line-222"></a>        <span class='hs-varid'>bs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>front</span> <span class='hs-varid'>bs'</span>
<a name="line-223"></a>
<a name="line-224"></a><a name="TextException"></a><span class='hs-comment'>-- |</span>
<a name="line-225"></a><a name="TextException"></a><span class='hs-comment'>-- Since 0.3.0</span>
<a name="line-226"></a><a name="TextException"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>TextException</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>DecodeException</span> <span class='hs-conid'>Codec</span> <span class='hs-conid'>Word8</span>
<a name="line-227"></a>                   <span class='hs-keyglyph'>|</span> <span class='hs-conid'>EncodeException</span> <span class='hs-conid'>Codec</span> <span class='hs-conid'>Char</span>
<a name="line-228"></a>                   <span class='hs-keyglyph'>|</span> <span class='hs-conid'>LengthExceeded</span> <span class='hs-conid'>Int</span>
<a name="line-229"></a>                   <span class='hs-keyglyph'>|</span> <span class='hs-conid'>TextException</span> <span class='hs-conid'>Exc</span><span class='hs-varop'>.</span><span class='hs-conid'>SomeException</span>
<a name="line-230"></a>                   <span class='hs-keyglyph'>|</span> <span class='hs-conid'>NewDecodeException</span> <span class='hs-varop'>!</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varop'>!</span><span class='hs-conid'>Int</span> <span class='hs-varop'>!</span><span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span>
<a name="line-231"></a>    <span class='hs-keyword'>deriving</span> <span class='hs-conid'>Typeable</span>
<a name="line-232"></a><a name="instance%20Show%20TextException"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Show</span> <span class='hs-conid'>TextException</span> <span class='hs-keyword'>where</span>
<a name="line-233"></a>    <span class='hs-varid'>show</span> <span class='hs-layout'>(</span><span class='hs-conid'>DecodeException</span> <span class='hs-varid'>codec</span> <span class='hs-varid'>w</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>concat</span>
<a name="line-234"></a>        <span class='hs-keyglyph'>[</span> <span class='hs-str'>"Error decoding legacy Data.Conduit.Text codec "</span>
<a name="line-235"></a>        <span class='hs-layout'>,</span> <span class='hs-varid'>show</span> <span class='hs-varid'>codec</span>
<a name="line-236"></a>        <span class='hs-layout'>,</span> <span class='hs-str'>" when parsing byte: "</span>
<a name="line-237"></a>        <span class='hs-layout'>,</span> <span class='hs-varid'>show</span> <span class='hs-varid'>w</span>
<a name="line-238"></a>        <span class='hs-keyglyph'>]</span>
<a name="line-239"></a>    <span class='hs-varid'>show</span> <span class='hs-layout'>(</span><span class='hs-conid'>EncodeException</span> <span class='hs-varid'>codec</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>concat</span>
<a name="line-240"></a>        <span class='hs-keyglyph'>[</span> <span class='hs-str'>"Error encoding legacy Data.Conduit.Text codec "</span>
<a name="line-241"></a>        <span class='hs-layout'>,</span> <span class='hs-varid'>show</span> <span class='hs-varid'>codec</span>
<a name="line-242"></a>        <span class='hs-layout'>,</span> <span class='hs-str'>" when parsing char: "</span>
<a name="line-243"></a>        <span class='hs-layout'>,</span> <span class='hs-varid'>show</span> <span class='hs-varid'>c</span>
<a name="line-244"></a>        <span class='hs-keyglyph'>]</span>
<a name="line-245"></a>    <span class='hs-varid'>show</span> <span class='hs-layout'>(</span><span class='hs-conid'>LengthExceeded</span> <span class='hs-varid'>i</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"Data.Conduit.Text.linesBounded: line too long: "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-varid'>i</span>
<a name="line-246"></a>    <span class='hs-varid'>show</span> <span class='hs-layout'>(</span><span class='hs-conid'>TextException</span> <span class='hs-varid'>se</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"Data.Conduit.Text.TextException: "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-varid'>se</span>
<a name="line-247"></a>    <span class='hs-varid'>show</span> <span class='hs-layout'>(</span><span class='hs-conid'>NewDecodeException</span> <span class='hs-varid'>codec</span> <span class='hs-varid'>consumed</span> <span class='hs-varid'>next</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>concat</span>
<a name="line-248"></a>        <span class='hs-keyglyph'>[</span> <span class='hs-str'>"Data.Conduit.Text.decode: Error decoding stream of "</span>
<a name="line-249"></a>        <span class='hs-layout'>,</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>unpack</span> <span class='hs-varid'>codec</span>
<a name="line-250"></a>        <span class='hs-layout'>,</span> <span class='hs-str'>" bytes. Error encountered in stream at offset "</span>
<a name="line-251"></a>        <span class='hs-layout'>,</span> <span class='hs-varid'>show</span> <span class='hs-varid'>consumed</span>
<a name="line-252"></a>        <span class='hs-layout'>,</span> <span class='hs-str'>". Encountered at byte sequence "</span>
<a name="line-253"></a>        <span class='hs-layout'>,</span> <span class='hs-varid'>show</span> <span class='hs-varid'>next</span>
<a name="line-254"></a>        <span class='hs-keyglyph'>]</span>
<a name="line-255"></a><a name="instance%20Exc.Exception%20TextException"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Exc</span><span class='hs-varop'>.</span><span class='hs-conid'>Exception</span> <span class='hs-conid'>TextException</span>
<a name="line-256"></a>
<a name="line-257"></a><a name="utf8"></a><span class='hs-comment'>-- |</span>
<a name="line-258"></a><span class='hs-comment'>-- Since 0.3.0</span>
<a name="line-259"></a><span class='hs-definition'>utf8</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Codec</span>
<a name="line-260"></a><span class='hs-definition'>utf8</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>NewCodec</span> <span class='hs-layout'>(</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-str'>"UTF-8"</span><span class='hs-layout'>)</span> <span class='hs-conid'>TE</span><span class='hs-varop'>.</span><span class='hs-varid'>encodeUtf8</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Streaming</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-varid'>decodeUtf8</span>
<a name="line-261"></a>
<a name="line-262"></a><a name="utf16_le"></a><span class='hs-comment'>-- |</span>
<a name="line-263"></a><span class='hs-comment'>-- Since 0.3.0</span>
<a name="line-264"></a><span class='hs-definition'>utf16_le</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Codec</span>
<a name="line-265"></a><span class='hs-definition'>utf16_le</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>NewCodec</span> <span class='hs-layout'>(</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-str'>"UTF-16-LE"</span><span class='hs-layout'>)</span> <span class='hs-conid'>TE</span><span class='hs-varop'>.</span><span class='hs-varid'>encodeUtf16LE</span> <span class='hs-varid'>decodeUtf16LE</span>
<a name="line-266"></a>
<a name="line-267"></a><a name="utf16_be"></a><span class='hs-comment'>-- |</span>
<a name="line-268"></a><span class='hs-comment'>-- Since 0.3.0</span>
<a name="line-269"></a><span class='hs-definition'>utf16_be</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Codec</span>
<a name="line-270"></a><span class='hs-definition'>utf16_be</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>NewCodec</span> <span class='hs-layout'>(</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-str'>"UTF-16-BE"</span><span class='hs-layout'>)</span> <span class='hs-conid'>TE</span><span class='hs-varop'>.</span><span class='hs-varid'>encodeUtf16BE</span> <span class='hs-varid'>decodeUtf16BE</span>
<a name="line-271"></a>
<a name="line-272"></a><a name="utf32_le"></a><span class='hs-comment'>-- |</span>
<a name="line-273"></a><span class='hs-comment'>-- Since 0.3.0</span>
<a name="line-274"></a><span class='hs-definition'>utf32_le</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Codec</span>
<a name="line-275"></a><span class='hs-definition'>utf32_le</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>NewCodec</span> <span class='hs-layout'>(</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-str'>"UTF-32-LE"</span><span class='hs-layout'>)</span> <span class='hs-conid'>TE</span><span class='hs-varop'>.</span><span class='hs-varid'>encodeUtf32LE</span> <span class='hs-varid'>decodeUtf32LE</span>
<a name="line-276"></a>
<a name="line-277"></a><a name="utf32_be"></a><span class='hs-comment'>-- |</span>
<a name="line-278"></a><span class='hs-comment'>-- Since 0.3.0</span>
<a name="line-279"></a><span class='hs-definition'>utf32_be</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Codec</span>
<a name="line-280"></a><span class='hs-definition'>utf32_be</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>NewCodec</span> <span class='hs-layout'>(</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-str'>"UTF-32-BE"</span><span class='hs-layout'>)</span> <span class='hs-conid'>TE</span><span class='hs-varop'>.</span><span class='hs-varid'>encodeUtf32BE</span> <span class='hs-varid'>decodeUtf32BE</span>
<a name="line-281"></a>
<a name="line-282"></a><a name="ascii"></a><span class='hs-comment'>-- |</span>
<a name="line-283"></a><span class='hs-comment'>-- Since 0.3.0</span>
<a name="line-284"></a><span class='hs-definition'>ascii</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Codec</span>
<a name="line-285"></a><span class='hs-definition'>ascii</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Codec</span> <span class='hs-varid'>name</span> <span class='hs-varid'>enc</span> <span class='hs-varid'>dec</span> <span class='hs-keyword'>where</span>
<a name="line-286"></a>    <span class='hs-varid'>name</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-str'>"ASCII"</span>
<a name="line-287"></a>    <span class='hs-varid'>enc</span> <span class='hs-varid'>text</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>bytes</span><span class='hs-layout'>,</span> <span class='hs-varid'>extra</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-288"></a>        <span class='hs-layout'>(</span><span class='hs-keyword'>safe</span><span class='hs-layout'>,</span> <span class='hs-keyword'>unsafe</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>span</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>c</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>ord</span> <span class='hs-varid'>c</span> <span class='hs-varop'>&lt;=</span> <span class='hs-num'>0x7F</span><span class='hs-layout'>)</span> <span class='hs-varid'>text</span>
<a name="line-289"></a>        <span class='hs-varid'>bytes</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>B8</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-layout'>(</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>unpack</span> <span class='hs-keyword'>safe</span><span class='hs-layout'>)</span>
<a name="line-290"></a>        <span class='hs-varid'>extra</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-keyword'>unsafe</span>
<a name="line-291"></a>            <span class='hs-keyword'>then</span> <span class='hs-conid'>Nothing</span>
<a name="line-292"></a>            <span class='hs-keyword'>else</span> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-conid'>EncodeException</span> <span class='hs-varid'>ascii</span> <span class='hs-layout'>(</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>head</span> <span class='hs-keyword'>unsafe</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-keyword'>unsafe</span><span class='hs-layout'>)</span>
<a name="line-293"></a>
<a name="line-294"></a>    <span class='hs-varid'>dec</span> <span class='hs-varid'>bytes</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>text</span><span class='hs-layout'>,</span> <span class='hs-varid'>extra</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-295"></a>        <span class='hs-layout'>(</span><span class='hs-keyword'>safe</span><span class='hs-layout'>,</span> <span class='hs-keyword'>unsafe</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>span</span> <span class='hs-layout'>(</span><span class='hs-varop'>&lt;=</span> <span class='hs-num'>0x7F</span><span class='hs-layout'>)</span> <span class='hs-varid'>bytes</span>
<a name="line-296"></a>        <span class='hs-varid'>text</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-layout'>(</span><span class='hs-conid'>B8</span><span class='hs-varop'>.</span><span class='hs-varid'>unpack</span> <span class='hs-keyword'>safe</span><span class='hs-layout'>)</span>
<a name="line-297"></a>        <span class='hs-varid'>extra</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-keyword'>unsafe</span>
<a name="line-298"></a>            <span class='hs-keyword'>then</span> <span class='hs-conid'>Right</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span>
<a name="line-299"></a>            <span class='hs-keyword'>else</span> <span class='hs-conid'>Left</span> <span class='hs-layout'>(</span><span class='hs-conid'>DecodeException</span> <span class='hs-varid'>ascii</span> <span class='hs-layout'>(</span><span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>head</span> <span class='hs-keyword'>unsafe</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-keyword'>unsafe</span><span class='hs-layout'>)</span>
<a name="line-300"></a>
<a name="line-301"></a><a name="iso8859_1"></a><span class='hs-comment'>-- |</span>
<a name="line-302"></a><span class='hs-comment'>-- Since 0.3.0</span>
<a name="line-303"></a><span class='hs-definition'>iso8859_1</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Codec</span>
<a name="line-304"></a><span class='hs-definition'>iso8859_1</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Codec</span> <span class='hs-varid'>name</span> <span class='hs-varid'>enc</span> <span class='hs-varid'>dec</span> <span class='hs-keyword'>where</span>
<a name="line-305"></a>    <span class='hs-varid'>name</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-str'>"ISO-8859-1"</span>
<a name="line-306"></a>    <span class='hs-varid'>enc</span> <span class='hs-varid'>text</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>bytes</span><span class='hs-layout'>,</span> <span class='hs-varid'>extra</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-307"></a>        <span class='hs-layout'>(</span><span class='hs-keyword'>safe</span><span class='hs-layout'>,</span> <span class='hs-keyword'>unsafe</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>span</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>c</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>ord</span> <span class='hs-varid'>c</span> <span class='hs-varop'>&lt;=</span> <span class='hs-num'>0xFF</span><span class='hs-layout'>)</span> <span class='hs-varid'>text</span>
<a name="line-308"></a>        <span class='hs-varid'>bytes</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>B8</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-layout'>(</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>unpack</span> <span class='hs-keyword'>safe</span><span class='hs-layout'>)</span>
<a name="line-309"></a>        <span class='hs-varid'>extra</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-keyword'>unsafe</span>
<a name="line-310"></a>            <span class='hs-keyword'>then</span> <span class='hs-conid'>Nothing</span>
<a name="line-311"></a>            <span class='hs-keyword'>else</span> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-conid'>EncodeException</span> <span class='hs-varid'>iso8859_1</span> <span class='hs-layout'>(</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>head</span> <span class='hs-keyword'>unsafe</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-keyword'>unsafe</span><span class='hs-layout'>)</span>
<a name="line-312"></a>
<a name="line-313"></a>    <span class='hs-varid'>dec</span> <span class='hs-varid'>bytes</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-layout'>(</span><span class='hs-conid'>B8</span><span class='hs-varop'>.</span><span class='hs-varid'>unpack</span> <span class='hs-varid'>bytes</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>Right</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span><span class='hs-layout'>)</span>
<a name="line-314"></a>
<a name="line-315"></a><a name="takeWhile"></a><span class='hs-comment'>-- |</span>
<a name="line-316"></a><span class='hs-comment'>--</span>
<a name="line-317"></a><span class='hs-comment'>-- Since 1.0.8</span>
<a name="line-318"></a><span class='hs-definition'>takeWhile</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span>
<a name="line-319"></a>          <span class='hs-keyglyph'>=&gt;</span> <span class='hs-layout'>(</span><span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Bool</span><span class='hs-layout'>)</span>
<a name="line-320"></a>          <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Conduit</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span>
<a name="line-321"></a><span class='hs-definition'>takeWhile</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span>
<a name="line-322"></a>    <span class='hs-varid'>loop</span>
<a name="line-323"></a>  <span class='hs-keyword'>where</span>
<a name="line-324"></a>    <span class='hs-varid'>loop</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>await</span> <span class='hs-varop'>&gt;&gt;=</span> <span class='hs-varid'>maybe</span> <span class='hs-layout'>(</span><span class='hs-varid'>return</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <span class='hs-varid'>go</span>
<a name="line-325"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span>
<a name="line-326"></a>        <span class='hs-keyword'>case</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>span</span> <span class='hs-varid'>p</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>of</span>
<a name="line-327"></a>            <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-328"></a>                <span class='hs-keyglyph'>|</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>yield</span> <span class='hs-varid'>x</span> <span class='hs-varop'>&gt;&gt;</span> <span class='hs-varid'>loop</span>
<a name="line-329"></a>                <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>yield</span> <span class='hs-varid'>x</span> <span class='hs-varop'>&gt;&gt;</span> <span class='hs-varid'>leftover</span> <span class='hs-varid'>y</span>
<a name="line-330"></a>
<a name="line-331"></a><a name="dropWhile"></a><span class='hs-comment'>-- |</span>
<a name="line-332"></a><span class='hs-comment'>--</span>
<a name="line-333"></a><span class='hs-comment'>-- Since 1.0.8</span>
<a name="line-334"></a><span class='hs-definition'>dropWhile</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span>
<a name="line-335"></a>          <span class='hs-keyglyph'>=&gt;</span> <span class='hs-layout'>(</span><span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Bool</span><span class='hs-layout'>)</span>
<a name="line-336"></a>          <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Consumer</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span>
<a name="line-337"></a><span class='hs-definition'>dropWhile</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span>
<a name="line-338"></a>    <span class='hs-varid'>loop</span>
<a name="line-339"></a>  <span class='hs-keyword'>where</span>
<a name="line-340"></a>    <span class='hs-varid'>loop</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>await</span> <span class='hs-varop'>&gt;&gt;=</span> <span class='hs-varid'>maybe</span> <span class='hs-layout'>(</span><span class='hs-varid'>return</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <span class='hs-varid'>go</span>
<a name="line-341"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>t</span>
<a name="line-342"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>loop</span>
<a name="line-343"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>leftover</span> <span class='hs-varid'>x</span>
<a name="line-344"></a>      <span class='hs-keyword'>where</span>
<a name="line-345"></a>        <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>dropWhile</span> <span class='hs-varid'>p</span> <span class='hs-varid'>t</span>
<a name="line-346"></a>
<a name="line-347"></a><a name="take"></a><span class='hs-comment'>-- |</span>
<a name="line-348"></a><span class='hs-comment'>--</span>
<a name="line-349"></a><span class='hs-comment'>-- Since 1.0.8</span>
<a name="line-350"></a><span class='hs-definition'>take</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Conduit</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span>
<a name="line-351"></a><span class='hs-definition'>take</span> <span class='hs-keyglyph'>=</span>
<a name="line-352"></a>    <span class='hs-varid'>loop</span>
<a name="line-353"></a>  <span class='hs-keyword'>where</span>
<a name="line-354"></a>    <span class='hs-varid'>loop</span> <span class='hs-varid'>i</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>await</span> <span class='hs-varop'>&gt;&gt;=</span> <span class='hs-varid'>maybe</span> <span class='hs-layout'>(</span><span class='hs-varid'>return</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>go</span> <span class='hs-varid'>i</span><span class='hs-layout'>)</span>
<a name="line-355"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>i</span> <span class='hs-varid'>t</span>
<a name="line-356"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>diff</span> <span class='hs-varop'>==</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>yield</span> <span class='hs-varid'>t</span>
<a name="line-357"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>diff</span> <span class='hs-varop'>&lt;</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>=</span>
<a name="line-358"></a>            <span class='hs-keyword'>let</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>splitAt</span> <span class='hs-varid'>i</span> <span class='hs-varid'>t</span>
<a name="line-359"></a>             <span class='hs-keyword'>in</span> <span class='hs-varid'>yield</span> <span class='hs-varid'>x</span> <span class='hs-varop'>&gt;&gt;</span> <span class='hs-varid'>leftover</span> <span class='hs-varid'>y</span>
<a name="line-360"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>yield</span> <span class='hs-varid'>t</span> <span class='hs-varop'>&gt;&gt;</span> <span class='hs-varid'>loop</span> <span class='hs-varid'>diff</span>
<a name="line-361"></a>      <span class='hs-keyword'>where</span>
<a name="line-362"></a>        <span class='hs-varid'>diff</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>i</span> <span class='hs-comment'>-</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>length</span> <span class='hs-varid'>t</span>
<a name="line-363"></a>
<a name="line-364"></a><a name="drop"></a><span class='hs-comment'>-- |</span>
<a name="line-365"></a><span class='hs-comment'>--</span>
<a name="line-366"></a><span class='hs-comment'>-- Since 1.0.8</span>
<a name="line-367"></a><span class='hs-definition'>drop</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Consumer</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span>
<a name="line-368"></a><span class='hs-definition'>drop</span> <span class='hs-keyglyph'>=</span>
<a name="line-369"></a>    <span class='hs-varid'>loop</span>
<a name="line-370"></a>  <span class='hs-keyword'>where</span>
<a name="line-371"></a>    <span class='hs-varid'>loop</span> <span class='hs-varid'>i</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>await</span> <span class='hs-varop'>&gt;&gt;=</span> <span class='hs-varid'>maybe</span> <span class='hs-layout'>(</span><span class='hs-varid'>return</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>go</span> <span class='hs-varid'>i</span><span class='hs-layout'>)</span>
<a name="line-372"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>i</span> <span class='hs-varid'>t</span>
<a name="line-373"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>diff</span> <span class='hs-varop'>==</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-374"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>diff</span> <span class='hs-varop'>&lt;</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>leftover</span> <span class='hs-varop'>$</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>drop</span> <span class='hs-varid'>i</span> <span class='hs-varid'>t</span>
<a name="line-375"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>loop</span> <span class='hs-varid'>diff</span>
<a name="line-376"></a>      <span class='hs-keyword'>where</span>
<a name="line-377"></a>        <span class='hs-varid'>diff</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>i</span> <span class='hs-comment'>-</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>length</span> <span class='hs-varid'>t</span>
<a name="line-378"></a>
<a name="line-379"></a><a name="foldLines"></a><span class='hs-comment'>-- |</span>
<a name="line-380"></a><span class='hs-comment'>--</span>
<a name="line-381"></a><span class='hs-comment'>-- Since 1.0.8</span>
<a name="line-382"></a><span class='hs-definition'>foldLines</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span>
<a name="line-383"></a>          <span class='hs-keyglyph'>=&gt;</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ConduitM</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>o</span> <span class='hs-varid'>m</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span>
<a name="line-384"></a>          <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>a</span>
<a name="line-385"></a>          <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ConduitM</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>o</span> <span class='hs-varid'>m</span> <span class='hs-varid'>a</span>
<a name="line-386"></a><span class='hs-definition'>foldLines</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span>
<a name="line-387"></a>    <span class='hs-varid'>start</span>
<a name="line-388"></a>  <span class='hs-keyword'>where</span>
<a name="line-389"></a>    <span class='hs-varid'>start</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>CL</span><span class='hs-varop'>.</span><span class='hs-varid'>peek</span> <span class='hs-varop'>&gt;&gt;=</span> <span class='hs-varid'>maybe</span> <span class='hs-layout'>(</span><span class='hs-varid'>return</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>const</span> <span class='hs-varop'>$</span> <span class='hs-varid'>loop</span> <span class='hs-varop'>$</span> <span class='hs-varid'>f</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span>
<a name="line-390"></a>
<a name="line-391"></a>    <span class='hs-varid'>loop</span> <span class='hs-varid'>consumer</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-392"></a>        <span class='hs-varid'>a</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>takeWhile</span> <span class='hs-layout'>(</span><span class='hs-varop'>/=</span> <span class='hs-chr'>'\n'</span><span class='hs-layout'>)</span> <span class='hs-varop'>=$=</span> <span class='hs-keyword'>do</span>
<a name="line-393"></a>            <span class='hs-varid'>a</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>CL</span><span class='hs-varop'>.</span><span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>filter</span> <span class='hs-layout'>(</span><span class='hs-varop'>/=</span> <span class='hs-chr'>'\r'</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varop'>=$=</span> <span class='hs-varid'>consumer</span>
<a name="line-394"></a>            <span class='hs-conid'>CL</span><span class='hs-varop'>.</span><span class='hs-varid'>sinkNull</span>
<a name="line-395"></a>            <span class='hs-varid'>return</span> <span class='hs-varid'>a</span>
<a name="line-396"></a>        <span class='hs-varid'>drop</span> <span class='hs-num'>1</span>
<a name="line-397"></a>        <span class='hs-varid'>start</span> <span class='hs-varid'>a</span>
<a name="line-398"></a>
<a name="line-399"></a><a name="withLine"></a><span class='hs-comment'>-- |</span>
<a name="line-400"></a><span class='hs-comment'>--</span>
<a name="line-401"></a><span class='hs-comment'>-- Since 1.0.8</span>
<a name="line-402"></a><span class='hs-definition'>withLine</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span>
<a name="line-403"></a>         <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Sink</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-varid'>a</span>
<a name="line-404"></a>         <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Consumer</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>Maybe</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span>
<a name="line-405"></a><span class='hs-definition'>withLine</span> <span class='hs-varid'>consumer</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toConsumer</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-406"></a>    <span class='hs-varid'>mx</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>CL</span><span class='hs-varop'>.</span><span class='hs-varid'>peek</span>
<a name="line-407"></a>    <span class='hs-keyword'>case</span> <span class='hs-varid'>mx</span> <span class='hs-keyword'>of</span>
<a name="line-408"></a>        <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-conid'>Nothing</span>
<a name="line-409"></a>        <span class='hs-conid'>Just</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-410"></a>            <span class='hs-varid'>x</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>takeWhile</span> <span class='hs-layout'>(</span><span class='hs-varop'>/=</span> <span class='hs-chr'>'\n'</span><span class='hs-layout'>)</span> <span class='hs-varop'>=$</span> <span class='hs-keyword'>do</span>
<a name="line-411"></a>                <span class='hs-varid'>x</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>CL</span><span class='hs-varop'>.</span><span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>filter</span> <span class='hs-layout'>(</span><span class='hs-varop'>/=</span> <span class='hs-chr'>'\r'</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varop'>=$</span> <span class='hs-varid'>consumer</span>
<a name="line-412"></a>                <span class='hs-conid'>CL</span><span class='hs-varop'>.</span><span class='hs-varid'>sinkNull</span>
<a name="line-413"></a>                <span class='hs-varid'>return</span> <span class='hs-varid'>x</span>
<a name="line-414"></a>            <span class='hs-varid'>drop</span> <span class='hs-num'>1</span>
<a name="line-415"></a>            <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>x</span>
<a name="line-416"></a>
<a name="line-417"></a><a name="decodeUtf8"></a><span class='hs-comment'>-- | Decode a stream of UTF8-encoded bytes into a stream of text, throwing an</span>
<a name="line-418"></a><span class='hs-comment'>-- exception on invalid input.</span>
<a name="line-419"></a><span class='hs-comment'>--</span>
<a name="line-420"></a><span class='hs-comment'>-- Since 1.0.15</span>
<a name="line-421"></a><span class='hs-definition'>decodeUtf8</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MonadThrow</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Conduit</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-varid'>m</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span>
<a name="line-422"></a><span class='hs-definition'>decodeUtf8</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>decode</span> <span class='hs-varid'>utf8</span>
<a name="line-423"></a>    <span class='hs-comment'>{- no meaningful performance advantage
<a name="line-424"></a>    CI.ConduitM (loop 0 decodeUtf8)
<a name="line-425"></a>  where
<a name="line-426"></a>    loop consumed dec =
<a name="line-427"></a>        CI.NeedInput go finish
<a name="line-428"></a>      where
<a name="line-429"></a>        finish () =
<a name="line-430"></a>            case dec B.empty of
<a name="line-431"></a>                DecodeResultSuccess _ _ -&gt; return ()
<a name="line-432"></a>                DecodeResultFailure t rest -&gt; onFailure B.empty t rest
<a name="line-433"></a>        {-# INLINE finish #-}
<a name="line-434"></a>
<a name="line-435"></a>        go bs | B.null bs = CI.NeedInput go finish
<a name="line-436"></a>        go bs =
<a name="line-437"></a>            case dec bs of
<a name="line-438"></a>                DecodeResultSuccess t dec' -&gt; do
<a name="line-439"></a>                    let consumed' = consumed + B.length bs
<a name="line-440"></a>                        next' = loop consumed' dec'
<a name="line-441"></a>                        next
<a name="line-442"></a>                            | T.null t = next'
<a name="line-443"></a>                            | otherwise = CI.HaveOutput next' (return ()) t
<a name="line-444"></a>                     in consumed' `seq` next
<a name="line-445"></a>                DecodeResultFailure t rest -&gt; onFailure bs t rest
<a name="line-446"></a>
<a name="line-447"></a>        onFailure bs t rest = do
<a name="line-448"></a>            unless (T.null t) (CI.yield t)
<a name="line-449"></a>            unless (B.null rest) (CI.leftover rest)
<a name="line-450"></a>            let consumed' = consumed + B.length bs - B.length rest
<a name="line-451"></a>            monadThrow $ NewDecodeException (T.pack "UTF-8") consumed' (B.take 4 rest)
<a name="line-452"></a>        {-# INLINE onFailure #-}
<a name="line-453"></a>    -}</span>
<a name="line-454"></a><span class='hs-comment'>{-# INLINE decodeUtf8 #-}</span>
<a name="line-455"></a>
<a name="line-456"></a><a name="encodeUtf8"></a><span class='hs-comment'>-- | Encode a stream of text into a stream of bytes.</span>
<a name="line-457"></a><span class='hs-comment'>--</span>
<a name="line-458"></a><span class='hs-comment'>-- Since 1.0.15</span>
<a name="line-459"></a><span class='hs-definition'>encodeUtf8</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Conduit</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span>
<a name="line-460"></a><span class='hs-definition'>encodeUtf8</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>CL</span><span class='hs-varop'>.</span><span class='hs-varid'>map</span> <span class='hs-conid'>TE</span><span class='hs-varop'>.</span><span class='hs-varid'>encodeUtf8</span>
<a name="line-461"></a><span class='hs-comment'>{-# INLINE encodeUtf8 #-}</span>
<a name="line-462"></a>
<a name="line-463"></a><a name="detectUtf"></a><span class='hs-comment'>-- | Automatically determine which UTF variant is being used. This function</span>
<a name="line-464"></a><span class='hs-comment'>-- checks for BOMs, removing them as necessary. It defaults to assuming UTF-8.</span>
<a name="line-465"></a><span class='hs-comment'>--</span>
<a name="line-466"></a><span class='hs-comment'>-- Since 1.1.9</span>
<a name="line-467"></a><span class='hs-definition'>detectUtf</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MonadThrow</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Conduit</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-varid'>m</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span>
<a name="line-468"></a><span class='hs-definition'>detectUtf</span> <span class='hs-keyglyph'>=</span>
<a name="line-469"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>id</span>
<a name="line-470"></a>  <span class='hs-keyword'>where</span>
<a name="line-471"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>front</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>await</span> <span class='hs-varop'>&gt;&gt;=</span> <span class='hs-varid'>maybe</span> <span class='hs-layout'>(</span><span class='hs-varid'>close</span> <span class='hs-varid'>front</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>push</span> <span class='hs-varid'>front</span><span class='hs-layout'>)</span>
<a name="line-472"></a>
<a name="line-473"></a>    <span class='hs-varid'>push</span> <span class='hs-varid'>front</span> <span class='hs-varid'>bs'</span>
<a name="line-474"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>length</span> <span class='hs-varid'>bs</span> <span class='hs-varop'>&lt;</span> <span class='hs-num'>4</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span> <span class='hs-varop'>$</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>append</span> <span class='hs-varid'>bs</span>
<a name="line-475"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span>       <span class='hs-keyglyph'>=</span> <span class='hs-varid'>leftDecode</span> <span class='hs-varid'>bs</span>
<a name="line-476"></a>      <span class='hs-keyword'>where</span> <span class='hs-varid'>bs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>front</span> <span class='hs-varid'>bs'</span>
<a name="line-477"></a>
<a name="line-478"></a>    <span class='hs-varid'>close</span> <span class='hs-varid'>front</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>leftDecode</span> <span class='hs-varop'>$</span> <span class='hs-varid'>front</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span>
<a name="line-479"></a>
<a name="line-480"></a>    <span class='hs-varid'>leftDecode</span> <span class='hs-varid'>bs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>leftover</span> <span class='hs-varid'>bsOut</span> <span class='hs-varop'>&gt;&gt;</span> <span class='hs-varid'>decode</span> <span class='hs-varid'>codec</span>
<a name="line-481"></a>      <span class='hs-keyword'>where</span>
<a name="line-482"></a>        <span class='hs-varid'>bsOut</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>append</span> <span class='hs-layout'>(</span><span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>drop</span> <span class='hs-varid'>toDrop</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-varid'>y</span>
<a name="line-483"></a>        <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>splitAt</span> <span class='hs-num'>4</span> <span class='hs-varid'>bs</span>
<a name="line-484"></a>        <span class='hs-layout'>(</span><span class='hs-varid'>toDrop</span><span class='hs-layout'>,</span> <span class='hs-varid'>codec</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-485"></a>            <span class='hs-keyword'>case</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>unpack</span> <span class='hs-varid'>x</span> <span class='hs-keyword'>of</span>
<a name="line-486"></a>                <span class='hs-keyglyph'>[</span><span class='hs-num'>0x00</span><span class='hs-layout'>,</span> <span class='hs-num'>0x00</span><span class='hs-layout'>,</span> <span class='hs-num'>0xFE</span><span class='hs-layout'>,</span> <span class='hs-num'>0xFF</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-num'>4</span><span class='hs-layout'>,</span> <span class='hs-varid'>utf32_be</span><span class='hs-layout'>)</span>
<a name="line-487"></a>                <span class='hs-keyglyph'>[</span><span class='hs-num'>0xFF</span><span class='hs-layout'>,</span> <span class='hs-num'>0xFE</span><span class='hs-layout'>,</span> <span class='hs-num'>0x00</span><span class='hs-layout'>,</span> <span class='hs-num'>0x00</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-num'>4</span><span class='hs-layout'>,</span> <span class='hs-varid'>utf32_le</span><span class='hs-layout'>)</span>
<a name="line-488"></a>                <span class='hs-num'>0xFE</span> <span class='hs-conop'>:</span> <span class='hs-num'>0xFF</span><span class='hs-conop'>:</span> <span class='hs-keyword'>_</span>           <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-num'>2</span><span class='hs-layout'>,</span> <span class='hs-varid'>utf16_be</span><span class='hs-layout'>)</span>
<a name="line-489"></a>                <span class='hs-num'>0xFF</span> <span class='hs-conop'>:</span> <span class='hs-num'>0xFE</span><span class='hs-conop'>:</span> <span class='hs-keyword'>_</span>           <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-num'>2</span><span class='hs-layout'>,</span> <span class='hs-varid'>utf16_le</span><span class='hs-layout'>)</span>
<a name="line-490"></a>                <span class='hs-num'>0xEF</span> <span class='hs-conop'>:</span> <span class='hs-num'>0xBB</span><span class='hs-conop'>:</span> <span class='hs-num'>0xBF</span> <span class='hs-conop'>:</span> <span class='hs-keyword'>_</span>    <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-num'>3</span><span class='hs-layout'>,</span> <span class='hs-varid'>utf8</span><span class='hs-layout'>)</span>
<a name="line-491"></a>                <span class='hs-keyword'>_</span>                        <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-num'>0</span><span class='hs-layout'>,</span> <span class='hs-varid'>utf8</span><span class='hs-layout'>)</span> <span class='hs-comment'>-- Assuming UTF-8</span>
<a name="line-492"></a><span class='hs-comment'>{-# INLINE detectUtf #-}</span>
</pre></body>
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